Ok I give up for today.
I've tried -stable, -current, all the combination of files and modifications of the config.txt I could think of, β¦
If someone already went through this, I'd gladly take some insights #NetBSD #RaspberryPi #RPi
The closest I was to get -current working gave me this but I'm unsure where this fails (my best guess would be that something went wrong while loading the second FFSv2 partition)
SUCCESS!! All thanks to @0x47DF@twitter.com π
Steps to get it to work:
1) Update your eeprom to at least 2020-09-03 (https://github.com/raspberrypi/rpi-eeprom/releases/tag/v2020.09.03-138a1). This is necessary to allow EFI partitions to boot
2) Flash your sdcard with 2020-12-09-netbsd-raspi-aarch64.img from http://mail-index.netbsd.org/port-arm/2020/12/09/msg007119.html
3) π